290 Radiation Oncology providers practice in Ohio, including 84 (29%) offering telehealth. The largest concentration is in Columbus. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
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| Radiation Oncology in Columbus | 68 providers |
| Radiation Oncology in Cleveland | 58 providers |
| Radiation Oncology in Cincinnati | 37 providers |
| Radiation Oncology in Kettering | 13 providers |
| Radiation Oncology in Lima | 7 providers |
| Radiation Oncology in Canton | 7 providers |
| Radiation Oncology in Toledo | 6 providers |
| Radiation Oncology in Akron | 6 providers |
| Radiation Oncology in Englewood | 5 providers |
| Radiation Oncology in Elyria | 5 providers |
| Radiation Oncology in Fairfield | 4 providers |
| Radiation Oncology in Sandusky | 4 providers |
| Radiation Oncology in Newark | 4 providers |
| Radiation Oncology in Sylvania | 4 providers |
| Radiation Oncology in Mentor | 4 providers |
| Radiation Oncology in Perrysburg | 3 providers |
| Radiation Oncology in Boardman | 3 providers |
| Radiation Oncology in Dayton | 3 providers |
| Radiation Oncology in Beavercreek | 3 providers |
| Radiation Oncology in Gallipolis | 3 providers |
| Radiation Oncology in Athens | 3 providers |
| Radiation Oncology in Maumee | 2 providers |
| Radiation Oncology in Warren | 2 providers |
| Radiation Oncology in Chillicothe | 2 providers |
From CMS Medicare enrollment records covering 191 of the 290 providers listed here (66%). Providers who do not bill Medicare are not included in these figures.
| Group (as registered with Medicare) | Radiation Oncologists | All clinicians in group | Main city |
| Cleveland Clinic | 30 | 6,954 | Cleveland |
| Osu Radiation Oncology LLC | 25 | 47 | Columbus |
| University Hospitals Medical Group Inc. | 15 | 2,248 | Cleveland |
| University of Cincinnati Physicians Company LLC | 13 | 1,474 | Cincinnati |
| Ohiohealth Corp.oration | 10 | 2,295 | Delaware |
| Hospital | City | Ownership | CMS star rating | Radiation Oncologists affiliated |
| Cleveland Clinic | Cleveland | Nonprofit | 4 of 5 | 31 |
| Ohio State University State Health System | Columbus | Government | 3 of 5 | 27 |
| Akron General Medical Center | Akron | Nonprofit | 5 of 5 | 14 |
| University of Cincinnati Medical Center, LLC | Cincinnati | Nonprofit | 3 of 5 | 13 |
| Uh Cleveland Medical Center | Cleveland | Nonprofit | 3 of 5 | 13 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
There are 290 Radiation Oncology providers with active NPI records practicing in Ohio, according to federal NPPES data refreshed monthly.
Yes. 84 of the 290 Radiation Oncology providers in Ohio (about 29%) report offering telehealth services in CMS data.
Columbus (68), Cleveland (58), Cincinnati (37) have the highest concentration of Radiation Oncology providers in Ohio.
151 of 290 Radiation Oncology providers in Ohio (52%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Among 191 Radiation Oncologists in Ohio enrolled in Medicare, 6% bill through a solo or small practice with fewer than 10 clinicians, 28% through a mid-size group of 10 to 99, and 66% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
According to CMS facility affiliation records, the Ohio hospitals where the most Radiation Oncologists hold privileges are Cleveland Clinic in Cleveland; Ohio State University State Health System in Columbus; Akron General Medical Center in Akron.
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